Nice review! BTW, Audi does not offer an inline 6 -- supercharged or not. Their "VR6" is a narrow aspect -- single head -- much like an inline though. The "bigger" engines are more conventional V6's. As far as I know only BMW and Volvo still offer the classic inline 6 cyl gas engines any more. Dodge uses an inline Cummins diesel 6 in their heavy duty RAM trucks though.